I need to know the very best kind of filter to buy for 100% removal of grow smell in a single plant closet grow. I'm using grow light, hydro pot, maybe a TENT, if it will reduce odour. I've heard that lemonseedgrass oil works well for lingering odor. Not lemonseed oil, but lemonseedgrass oil, a little in a bucket of water, under a fan rids smell very well, but I still need to know the best filter and size to get, for a single plant closet grow. I am trying to stay unnoticed, even by other members of the household. So, I really need a magic trick here guys. Someone please gimme some real good tips, from their own experience please. No, I heard someone say crap, I need 100% facts from personal experience. Thanks fellow naturists.